Fire preventer



FIG. 1 is a perspective view of the claimed design;

FIG. 2 is a front orthogonal view of the claim design;

FIG. 3 is a rear orthogonal view of the claimed design;

FIG. 4 is a left side orthogonal view of the claimed design;

FIG. 5 is a right side orthogonal view of the claimed design;

FIG. 6 is a top orthogonal view of the claimed design; and,

FIG. 7 is a bottom orthogonal view of the claimed design.

The broken lines depict portions of the fire preventer that form no part of the claimed design. 

CLAIM We claim the ornamental design for a fire preventer, as shown and described. 